20721646

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{22973}}^1$

素因数の和:23027

約数の個数: 16

約数和(自身を含む): 34736688

約数和(自身を除く): 14015042

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 22973, 45946, 252703, 505406, 941893, 1883786, 10360823, 20721646]

約数ペア:

[(1, 20721646), (2, 10360823), (11, 1883786), (22, 941893), (41, 505406), (82, 252703), (451, 45946), (902, 22973)]